Description
| Size | 1/8″-4″ union |
|---|---|
| Material | 304 and 316 Stainless |
| Connection | Female/Male Thread |
| Specification | 3/4 inch, sch 150 |
| Technics | Casting |
| Application | Pipe unions are used for natural gas, oil, water, fire fighting, landmines, and other piping system connections. |
| Origin | China |
| Package | Cartons & Pallet / Cartons & Plywood Cases |
| Trademark | SANVO |
| Free Sample | Yes |
1. Introduction
The 3/4 union fitting with NPT threading is versatile and essential in modern piping systems. High performance and reliability are ideal for connecting, disconnecting, and maintaining pipelines without compromising system integrity. Whether you are managing a residential plumbing project or a complex industrial pipeline, Thread Union delivers unmatched durability and ease of use.
2. Material and Build
Stainless steel 3/4 union is highly resistant to corrosion, rust, and environmental wear. The 304 stainless steel fitting ensures longevity even in harsh conditions, such as exposure to water, chemicals, or high temperatures. The stainless steel union is a robust design that can withstand demanding environments.
3. Types of Unions
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Male union

A male-threaded plumbing union fitting connects to female pipes effectively.
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Female threaded union
The female thread design is suitable for connecting male-thread pipes or fittings. A seamless connection provides a tighter seal to meet specific demands.
4. Features
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Precision NPT Threading
The National Pipe Thread (NPT) standard threading ensures a secure and leak-proof connection. The 3/4 NPT pipe provides a tight seal, reducing the risk of leaks in high-pressure or critical applications.
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Easy Installation
The union fitting facilitates efficient assembly and disassembly, enabling users to quickly connect or disconnect the piping to accommodate maintenance or necessary adjustments.
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Universal Compatibility
The 3/4-inch size and NPT threading of 3/4 pipe unions are compatible with various pipes and fittings, enhancing their versatility across different systems.
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High-Performance Material
Stainless steel union provides excellent corrosion, rust, and scaling resistance, making stainless steel unions suitable for water, gas, oil, and chemical applications.
5. Applications
This 3/4 union fitting is suitable for a variety of uses, including but not limited to:
Plumbing Systems: Ensures a reliable connection for residential and commercial plumbing.
Industrial Piping: Perfect for factories, plants, and other industrial applications.
Fluid and Gas Transfer: Handles the transportation of liquids and gases securely.
HVAC Systems: In heating, ventilation, and air conditioning systems, for their robust performance.
6. Advantages
Durability: The stainless steel material offers a long service life, reducing replacement frequency and maintenance costs.
Versatility: Works seamlessly in various environments, from residential setups to industrial projects.
Leak Resistance: Precision threading and high-quality materials ensure a tight seal.
Cost Efficiency: Investing in a durable product like this reduces the need for frequent repairs or replacements.
7. Technical Specifications

Material: 304 Stainless Steel
Size: 3/4 Inch
Threading: NPT (National Pipe Thread)
Pressure Rating: High-pressure resistant
Temperature Range: Suitable for a wide range of temperatures
8. Conclusion
The 3/4 Union Fitting with NPT threading is a reliable, high-performance solution for any piping system. Its superior material, precise threading, and versatile application make it a preferred choice for professionals and hobbyists. Whether you’re ensuring the integrity of a plumbing system or upgrading an industrial pipeline, this union fitting provides the durability and functionality you need.
Invest in quality and performance with this stainless steel union fitting, and experience the difference it brings to your projects.






